Mat Burn Paper

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Mat burn paper. Corroding particles in paper create unsightly brown spotting. Will stain the paper if not removed. In the picture framing industry a mat or matte or mount in british english is a thin flat piece of paper based material included within a picture frame which serves as additional decoration and to perform several other more practical functions such as separating the art from the glass putting mats in a frame is called matting a term which can also usually be used interchangeably with mat. This staining is probably mat burn.

As the mat ages the wood pulp decomposes releasing acid which migrates to absorbent paper below. It isn t always visible on matted and framed works. Poor quality mats are created from paper with heavy wood pulp content which is chemically unstable and acidic. Stains such as foxing brown spots caused by molds or my metal impurities left in the paper during manufacture matburn the brown line caused by contact with an acidic mat some water stains and mold stains may not be removed by immersion in water.

It is the cut edge of the matboard which is most acidic and damaging to a work of art on paper. Mat burn creates a darkening edging around where the window of the mat was but can also darken any area in contact with an acidic mat. Laid down framers of yesteryear thought nothing of slathering the back of the print or part of the print with glue to achieve a perfectly smooth look and the make sure the art would stay where it was placed. Even if not always is necessary to wash the artwork to remove the discoloration caused by the mat in this case other than the mat burn there was a severe overall discoloration.

Tape and adhesive. It was necessary to wash the print to remove all the acidity and degradation products that were in the paper. Acidic backing and or matting. Cockled paper is usually wavy or rippled.

Mat burn the acid from the paper fibers in the mat cause a discoloration to occur where the mat sat on top of the print. Brown line of acid burn around image. This often occurs from. But an acidic mat is a slow fire which burns paper marring its appearance and reducing its value.

Mat burn is often mistaken for foxing by the discoloration and embrittlement of the paper which is caused by prolonged contact with an acidic mat or other framing or storage materials. Can cause acid burn if not removed. Mat burn usually appears as darkening or yellowing of the paper along the bevel edge of the mat.